Concentra

Concentra is a picture puzzle in sudoku style, as the rows and columns may have each item used only once. While playing, children engage analytical and creative thinking while they concentrate to fill in the entire grid. There are 3 levels of difficulty per puzzle: easy, difficult and very difficult and each game board is coded to picture cards and control cards. Self-checking. Contents: 6 game boards 60 picture cards 6 control cards manual Wooden box with lid (27.6 x 24 x 2.8 cm).